<!DOCTYPE html>
  <html>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <head>
    </head>
    <body>
      <style>
        #main {
          height: 100%;
        }  
      </style>
      <div id="main"></div>
      <script type="module" src="bundle.js"></script>
    </body>
  </html>